[gmx-users] question on RDF

[L.Liu at utwente.nl]

Dear all,

When calculation the RDF, it asks:

Select a reference group and 1 group
Group     0 (         System) has  1600 elements
Group     1 (          Other) has  1600 elements
Group     2 (             PE) has  1600 elements
Group     3 (       a_1-1600) has  1600 elements

My question is what's the difference between reference group and 1 group, how the RDF calculated for them.

Thank you very much.

Kind regards,
Li